Chemical engineering is based in the principles of physics, chemistry, and mathematics.

The workers are building a new bridge which is 150 meters in high.

We had better to review this lesson carefully because we will have some questions on it.

Practicing his speaking English everyday, his hope was to get a good job in a foreign company.

I can’t find the letter I received from my boss some days ago. I might throw it into the waste paper bin yesterday.

Narcissus, a character in mythology, gazed at his own image in a pool so ardently that he fell into itself and downed.

People are not allowed enter the park after midnight because of lack of security.

Although caffeine is a moderately habit-forming drug, coffee is not regarded as harmfully to the average healthy adult.

By the mid-nineteenth century, land was such expensive in large cities that architects began to conserve space by designing skyscrapers.

Jason’s professor had him to rewrite his thesis many times before allowing him to hand it in.

Regarding as one of the leading figures in the development of the short story, O Henry is the author of many well- known American novels.

Today's job seekers are confronted with such question as "Are you computer literate?" and "Can you set up a data base?"

Most bothersome flies belong to the family Sarcophagidae and are popular known as flesh flies because the larvae feed on flesh.

There are much kinds of books in my school library,but readers cannot borrow them.

Tenant farmers are those they either rent a farm and work it for themselves or work the farm for the owner and receive payment.

He has a great deal of books most of which are on science and technology.

A dangerously situation was created by the bad roads.

I can’t go out tonight because I have too many work to do.

Women in many parts of the world have had lower status than men, which the extent of the gap between genders varies across cultures and times.

Thanks for the liberation of women, women can now take part in social activities.

For the first time in the history of the country, the person which was recommended by the president to replace a retiring justice on the Supreme Court is a woman.